A modified modulation scheme for three-level diode-clamped matrix converter under unbalanced input conditions

Su, Mei and Zhao, Ziyi and Dan, Hanbing and Peng, Tao and Sun, Yao and Che, Ruyu and Zhang, Fan and Zhu, Qi and Wheeler, Patrick (2018) A modified modulation scheme for three-level diode-clamped matrix converter under unbalanced input conditions. IET Power Electronics, 11 (8). 1425 -1433. ISSN 1755-4543

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Abstract

The three-level diode-clamped matrix converter topology has outstanding performance under ideal operating conditions. However, input disturbance can influence the waveforms at the output side of the converter due to the direct coupling between the input and output. This paper proposes a modified modulation scheme for three-level diode-clamped matrix converter during operation with unbalanced input voltages and when different transformer turns ratios are used for an isolation transformer at the input. With this modulation technique, sinusoidal and balanced output voltages are guaranteed and the input current harmonics are minimized. Experimental results are presented to demonstrate the feasibility and effectiveness of the proposed modulation scheme.

Item Type: Article
Additional Information: © 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Keywords: Different transformer turns ratios of the isolation transformer; Three-level diode-clamped matrix converter; Unbalanced input voltages; Modified modulation scheme
Schools/Departments: University of Nottingham, UK > Faculty of Engineering > Department of Electrical and Electronic Engineering
Identification Number: https://doi.org/10.1049/iet-pel.2017.0512
Depositing User: Eprints, Support
Date Deposited: 23 Feb 2018 09:27
Last Modified: 26 Jun 2018 12:43
URI: http://eprints.nottingham.ac.uk/id/eprint/49956

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